BP starts the "top kill" operations

press release

May 26, 2010

UPDATE ON GULF OF MEXICO OIL SPILL

BP started the "top kill" operations today to stop the flow of oil from the MC252 well in the Gulf of Mexico.

The procedure is intended to stem the flow of oil and gas and ultimately kill the well by injecting heavy drilling fluids through the blow out preventer on the seabed, down into the well.

Pumping started at approx 19.00 UK, 13.00 (CST) and continues.

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BP Press Office London: +44 20 7496 4076

BP Press office, US: +1 281 366 0265

Unified Command Joint Information Center:+1 985-902-5231

www.deepwaterhorizonresponse.com

www.bp.com/gulfofmexicoresponse

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